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Carl Edward Sagan (9 November, 193420 December, 1996) was an American No-Maj astronomer, astrophysicist, cosmologist, author, science populariser, and science communicator in the space and natural sciences.

Biography[]

During his lifetime, he published more than six-hundred scientific papers and popular articles and was author, co-author, or editor of more than twenty books.[1]

Carl Sagan wrote the introduction of A Brief History of Time by Stephen Hawking.[2]

Appearances[]

Notes and references[]

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